Type-writing machine.



H. S. MOCORMAGK. TYPE WRITING MACHINE. APPLICATION I'I'LBD NOV. 6, 1908.

Patented May 11, 1909.

UNITED srarasra rnnr oriuon.

HARRY 'McCOlilllAtK, OF NEW ROCHELLE, NEW YORK, ASSIGNOR TO UNDERWOOD TYPEWRITER COMPANY, O1" NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

TYPE-WBITING MACHINE.

Specification of Letters Patent.

Patented May 11, 1909'.

T all whom it may concern:

Be it known that I, IIARRY S. McCon- MACK, a citizeii of the United States, residing in New Rochelle, in the county of VVest-l chester and State of New York, have invent- 5 ed certain new and useful Improvements in ing is a speci 'cation.

This invent-1011 relates to card guides or feeders for typewriting machines.

paper to lie close against the platen at the )rintingpoiht but'stiff paper orcards tend to ulge out between their side'edges to an extent to cause the writing to be blurred.

, Such bulging is largely due to the fleiring of the card around the cylindrical platen, as the card tends constantly to spring back from its flexed condition to its nor nal fiat shape, thus causing a bulge wherever the card is not tightly held by its guides against the platen. It is also found difficult to feed cards propness and resistance tobeing bent around the same. Largely for these reasons, it has been found difficult to write upon stiff cards clearly, especially at their edges, and particularly at their bottom edges.

The principal object of this invention is to overcome these objections, anc make it practicable to feed a card accurately in linespace direction, and to write clearly upon all parts of the same, including all edge portions.

In 0 rr in out the invention in addition to the usual card-pressing rolls which run upon the platen, I provide an auxiliary feeding device directly above the printing line in a--front strike machine, whereby the'card is drawn up from the printing line. This auxiliary device comprises a'feeding roll, out of contact with the platen, but driven by a driving roll or rolls which run directly upon the platen.- 'The top edge of the card as it 'vance the card.

rises above the printing line enters the bite of this auxiliary feeding device, which turns at the same surface speed as the platen, and for some distance cooperates with the platen and theusual platen pressure rolls to ad- After the bottom edge of the card has passed the usual platen pressure rolls, the auxiliary feeding device is relied upon'to draw the card up 'line by line until it is filled with writing. The line feeding. of

' the card is thus always positive'and accurate.

A further advantage is derived from per;- mitting the card as it passes up from the printing point to resume substantially its flat or unbent normal condition, whereby its tendency to bulge is materially reduced, and

when the bottom edge of the card advances Typeel Vritin Machines, of which the followi to the printing line, thetendency to bulge 2 disappears, because the entire card at thisv time is in a substantially flat unsprung con- 1 dition, and writing may be accurately and In order to enable the types to make clear 3 impressions, it-is necessary for a card or around the platen, owing to their stiffclearly done right along its very bottom edge. This flat or normal condition in the card also conduces to accuracy in the line-feeding of the auxiliary feeding devices. 7

Other objects and advantages will hereinafter appear. I i In the accompanying drawings, Figure 1 shows side and edge views of the main structure of one of the principal members of the auxiliary feeding devices. Fig. 2 is a part sectional side elevation of the platen and platen frame of an Underwood front strike writing machine, to which my improvements have been applied; one of the auxiliary feed arms being shpwn swung up from the platen. Fig. 3 is a perspective view of said platen and platen frame, showing the auxiliary feed mechanism, a card being shown by dotted lines.

Types 1, mounted in a seginent 2, strike against the front side of a platen 3, mounted in the ends 4 of a platen frame, which also comprises a rear paper shell 5, and is advanced in line-space direction by a lever 6, pawl 7 and a ratchet wheel 8. Hear and front rolls 9, 10 run upon the under side of the platen, and the paper shell" 5 curves for- Wardly around the bottom of the platen, and up at the front side thereof nearly to the printing line, as at 11.

The card A is introduced between. a pair of gages 12-for its side edgcs,'said gages running down along the paper shelf 5, and prolonged at 13 to extend between the platen and the paper shelf nearly to the pressure roll 9 the card being thus guided until it enters the bite of the pressure roll and platen, is not liable to become skewed. The card feeds forwardly around the under side of the platen, and up in frontkthereof, and is written upon by the types 1. The card is held back against the platen by a guard 14 inserted in the top of. the type -bar segment 2, said guard in the form of a yoke or bow surrounding the printingpoint just back of the ink ribbon 15. In

said Underwood machine, the platen'fra-me travels from left to right for letter-spacing, being provided with a roll 16 to run upon'a 'rail. 17 ,said roll pivoted upon a rod 18 forming part of the platen frame.

During this letter-spacing travel of the carriage, the card travels while the 'uard 14 remains station: ary, the latter serving to hold the card firmly at the printing point.

From the printing line the card passes up behind a pair of directrices 19 (which extend down in front of the card 14) to a pair of feeding rolls-20, which are turned by means of driving rolls 21 that run upon the surface of the platen, so that the surface speed of the feedmgrolls 20 is always the same as that of the platen. The card. isheld against the feeding ro1l120 by spring chps 22 with suffi-- cient force to enablethe rolls to advance the card upwardly ;-and the directrices 19 may be in the form of pendentforwardly offset ex-. tensions of said spring clips, as shownf Asthe platen turns, the card is carried up by the rolls -10, 20 in; cooperation, until the bottom edge of the card passes the roll 10, whereupon the rolls20, which together with the clips 22 form the auxiliary feeding device, form the sole means for advancing the card. At this time, the card is nearly in normalfiat condi tion, and as the card rises line by line this 24 to the side-gage lates 12; the latter being .fixed to slides 25 W ich are,adjustable independently of each-other lengthwise of the platen along a rod'26 fixed to the platen frame ends the slides 25 being prevented "21 to press firmly upon the platen.

from turning on the rod bykeys 27 of comf' mon construction.

The hinging of the arms permits 'them'to be swung 'backwa-rdly away from the platen, as seen at the upper part of .Fig. 2; and a' further object of hinging them is to enable them to be adjusted to cause-the guide rolls This pressure is produced by screws 28 threaded through the arms at points forward'of the hinges-and bearing against beveled-faces 29 upon the supporting plates 12; the bevels being so inclined that pressure of the screw points thereagainst forces 1 the arms 23 to swing downwardly toward the platen. The

pressure of the driving rolls may thus be nicely. regulated. Upon unscrewing either of the screws 28 its arm may be swung up above the hinge 24 to the position'seen at the top of Fig. 2.

card index work.

A further object accomplished byjthis finvention resides in 'reducingfthe extent to which the card is bent arou'ndthe platen, since in front strike writing machines it has usually been necessary to bend the cards nearly around the entire platen, whereby the cards have acquired a permanent set, which set proves an objection where the written cards are used for card indexes.

QThis objection is overcome becausea card is bent around onlya small-portionof the platen, and all portions; of the card are not bent at the same time, so that the card in 'emerging from the machine is in substantiallynormalflat condition well adapted for Variations maybe resorted to within the scope of the invention, and portions of the claim:

1. In-a typewriting machine, the combination 'withfa revolu'ble platen and a platen frame, of a rod mounted on the platen frame and extending along the platen, an. arm extending from said rod toward the printing line on the platen, a drivingrollpivoted on improvements may be used without others,

Having thus described my invention, I"

said. arm torunupon' thesurface of the the printing line. 2. In a typewritingmachine, the combination with a revoluble platen and a platen frame, of a rod mounted onthe platen frame 1 and extendingalong the platen, an arm ex tending from said rod toward the printing line on the platen, a driving. roll pivoted on said arm to run .upon the surface of the:-

platen, and means mounted on said arm and including a feeding roll operated by said driving roll, for feeding cards forwardly from the printing line; said arm carried on a slide mounted on said rod. j I

3. Ina typewriting machine, the combina'-. tion with a revoluble laten and a platen frame, of a rod mounted 'on'the'pla'ten frame and extending along the platen, an arm'extending from said rod toward the printing line on the platen,fa driving roll pivoted on said arm to ,run' upon the surface of the platen, and means mounted on said arm and including a'feed roll operated by said driving 'roll, for feeding card's forwardly from the printing line; saidarm having provision for regulating the. pressure of the driving roll against the. platen.

4. In a typewritm machine,- the conibina- 1 tion with a revolub e (platen and a platen frame, of a rod mounte on the platen frame and extending along the platen, :ana-rm'extending from said rod toward the printing line onthe platen, a driving roll'pivoted on said arm to, run upon the surface of the platen, means-mounted on said arm and including a feeding'rolloperated'by said driv- Y platen, and means mounted on said arm and including a feeding roll operated by said driving roll, for feeding cards forwardly from line on the platen, a driving roll pivoted on ing ro said arm to run upon the surface of the platen, means mounted on said arm and includ' a feeding roll 0 erated by said driv il, for feedin cardhforwardly from the printing line; sai arm carried on a slide mounted on said rod, and connected to a gage at the introductory sideof the platen for the side edge of the card.

6.. The combination with a .revoluble platen, of a driving roll to run upon the surface of the platen at the delivery side thereof, card-feeding means operated by said driving roll, and a support on which said roll and feeding means are adjustable together. along the platen. a

7. The combination with a revoluble platen, of a driving roll to run upon the surface of the platen at the delivery side thereof, card-feeding means operated by said driving roll, a support on which said roll and feeding means are adjustable together along the platen, and means to regulate the pressure of the driving roll on the platen 8. The combination with a revoluble laten, of a driving roll to run upon the surface ofthe latch at the deliveryfside thereof, a card-fee ing roll operated by said driving roll, means to regulate the pressure of the driving roll on the platen, and a directrix.

leading from the printing line to the feeding roll; said rolls, pressure-regulati platen.

9'. The combination with a revoluble traveling platen, of a dri roll to run upon the surface of the platen at the delivery side rated by said thereof, card-feedingmeans 0 driving ."roll, and a guide ed. upon the framework of'the machine in proximity to the front of the traveling-platen, and extending toward said feeding means.

10. The combination with a revoluble laten, of means adjustable along the platen or feeding cards upon the delivery side "of the platen, said feeding means comprising a driving roll to run upon the surface of the platen and a card feeding roll'rotated by said driving roll, and means to against-the feeding roll. g '11 .The combination with a revolu'ble laten; of means adjustable along-the platen or feeding cards u on the delivery side of theplaten, said fe ing means comprising a means and directrix adjustable'together a ong the press the card ing from the printing line to the feeding roll.

12. The combination with a revoluble laten, of means adjustable along the platen for feeding cards upon the delivery side of the platen, said feeding means comprising adriving roll to run upon the surface of the platen and a card feeding roll rotated by said driving roll, means to press the card against the feeding roll, and means to regu- 'late the pressure of the driving roll on the platen. v 13. In a typewriting machine, the combination with a revoluble platen, of a cardholding mechanism comprising a pair of driving rolls running upon the platen, cardfeeding rolls running in contact with said feeding rolls to cooperate therewith to feed the cards.

- I4.v In a-typewriting machine, the combination with a revoluble platen, of a cardholding m'echanism comprising a pair of driving rolls running upon the platen, cardfeeding rolls running 1n contact with said driving rolls, means opposed to said feeding rolls to cooperate therewith to feed the cards, and directrices extending from said feeding means toward the printing line on the platen. I

15. In-a typewriting machine, the combination with a revoluble platen, of a card.-

holding 'mechanism comprising a pair of driving rolls running upon the platen, cardfeeding rolls running 1n contact with said driving rolls, means opposed to said feeding rolls to cooperate therewith to feed the cards, and means for regulating the pressure of said drivin rolls. against the platen.

' 16. n a typewriting machine, the combination' with a revoluble platen, of a: cardholding mechanism comprising a'pair of arms adjustablefalong the platen,.'drivin rolls running upan the platen and. pivote u on said arms, card-feeding rolls also pivot ed upon said arms and running in contact with saiddriving rolls, and means opposed to said feeding-'rollsto cooperate therewith to feed the cards.

17. In a typewriti macliine, the-combidriving rolls, and means opposed to saidnation with 'a' revolu le platencof a cardholding mechanism "comprising a pairiofarms adjustable 1 along. the} l'plate'n, driving rolls running upon the platen and pivoted upon said arms, card-feeding rolls also pivoted upon said arms and runningLi'n contact with said driving rolls,and means opposed to said feeding rolls to coop erate therewith to feed the cards; said arms having gages for the side the machine. 18. In a typewriting machine, the combiedges of the cards at the introductory side: of

nation with a revoluble platen, of a cardholding mechanism comprising a pair of brackets mounted on a rod parallel with the platen for adjustment along the latter, arms extending from said brackets, driving rollsrunning upon the laten,'and pivoted upon said arms, and car -feeding rolls also pivoted, uponsaid arms and running in contact with said driving rolls.

19. In a typewriting machine, the combination with a revoluble platen, of a cardholding mechanism comprising a pair of brackets mounted on a rod parallel with the platen for adjustment along the latter, arms extending from said brackets, driving rolls running upon the platen and pivoted upon said arms, card-feeding rolls also pivoted upon said arms and running in contact with said driving rolls, and plates opposed to said feeding rolls to cooperate therewith to feed the cards.-

20. In a typewriting machine, the combination with a revoluble platen, of a cardholding mechanism comprising a pair of brackets mounted on a rod parallel with the platen for adjustment along the latter, arms. extending from said brackets, driving rolls runningupon the platen and pivoted upon said arms, card-feeding rolls also pivoted upon said arms and running in contact with said driving rolls, and plates opposed to said feeding rolls to cooperate therewith to feed the cards, said plates having directrices extending toward the printing line on the platen.

21. In a typewriting machine, the combination with a revoluble platen, of a cardholding mechanism comprising a pair of brackets mounted on a rod parallel with the platen for adjustment along the latter, arms extending from said brackets, driving rolls running upon the platen and pivoted upon said arms, card-feeding rolls also pivoted upon said arms and running in contact with said driving rolls, plates opposed to said feeding rolls to cooperate therewith to feed the cards, and' adjustable'means for regulating the pressure of said driving rolls against the platen;-

22. In a typewriting machine, the combination with a revoluble platen; of a cardholding mechanism comprising a pair of slides mounted on a rod parallel with the platen for adjustment along the latter, arms extending from said slides, drivingrolls pivotedupon said arms and running upon the platen, card-feeding rolls also pivoted upon said arms and running in contact with said driving rolls, plates opposed to said feeding rolls to cooperate therewith to feed the cards, said plates having directrices extending to-' Ward the printing line on the platen, and adjustable means for regulating the pressure of said driving rolls against the platen, comprising screws threaded throughsaid arms to ear against inclined surfaces upon said slides, the latter having gages at the introductory side of the machine for the side edges of the cards.

23. In a typewriting machine, the combination with a revoluble platen mounted on a carriage, of card-holding means including a stationary card guide in proximity to the platen near the printing omt, a pair of cardfeeding devices mounted on the carriage and. including guide rolls to run upon the platen, feed rolls opprated by said ide rollsyand in positioncto e engaged by t e card asit feeds up beyond said guide, and means cooperating with said feed rolls to engage said card on its opposite side to feed the same upwardly.

24. In a typewriting machine, the combination with a revoluble platen mounted on a carriage, of card-holding means including a stationary card guide in proximityto the' platen near the printing point, a pair ofcardfeeding devices mounted on the carriage and including guide rolls' to run upon the platen, feed rolls 0 erated by said guide rolls and in position to e engaged by the card as it feeds up beyond said guide, means cooperating ;with said feed rolls to engage said card on its opposite side to feed the same upwardly, and directrices extending from said feeding rolls toward the printing point.

25. In a typewriting machine, the combination with a' revoluble platen mounted on a carriage, of card-holding means including a stationary card guide in proximity to the platen near the printing point, a air of card-feeding devices mounted on t e carriage and includin guide rolls to run upon the platen, feed ro s operated by said guide rolls and in osition to be engaged by the card as it fee s up beyond said uide, means cooperating with said feed rols to engage sai card on its .op osite side to feed the same upwardly, an dire'ctrices extending from said feeding rolls toward the printing point, said directrices bent away from the platen to pass over said card guide.

26. The combination with a revoluble platen, of a pair of driving rolls to run upon the surface of the laten at the delivery side thereof, feeding r0 ls driven by said drivin rolls, and means cooperating with said fee ing rolls to catch the side edges of the card to advance it past the printing line on the platen.

27. The combination with a revoluble platen, of a pair of driving rolls to run upon the surface of the laten at the delivery side thereof, feeding ro lls driven by said driving rolls, means cooperating with said feeding rolls .to catch the side edges of the card to advance it past the printing line on the platen, and means to regulate the, pressure of eachdriving roll upon the platen inde-. pendently of the other.

v 28. The combination with a revoluble platen, of a pair of driving rolls, to run upon line to the feeding rolls, and a card guide mounted upon the machine frame in proximity to the printing line; said platen mounted upon a carriage to travel past said guide.

29. The combination'with a revoluble platen, of a pair of sets of card-feeding devices, each set com )rising a roll to run upon i the surface of the platen at the delivery side thereof, a card-feeding roll operated by said driving roll, and means to press the side edge of the card against the feeding roll.

30. The combination With a revoluble platen, of pair of sets of eard-feeding devices, each set com rising a roll to run upon the surface of the p aten at the delivery side thereof a eardfeeding roll operated by said driving roll, and means to press the side edge of the card against the feeding roll; said sets being adjustable toward and away from each other. along the platen.

31. In a typewriting machine, the combii nation with a revoluble -platen and a platen l frame, of a rod mounted on the platen frame and extending along the platen, a pair of arms extending from said rod toward the printing line on the platen, driving rolls on said-arms to run upon the surface of the platen, feeding rolls also mounted on said l l l catch the side edges of the card to advance i it from the printing line.

32. In a typewriting machine, the combination with a revoluble platen and a platen frame, of a rod mounted on the platen frame and extending along the platen, a pair of arms extending from said rod toward the printing line on the platen, driving rolls on said arms to run upon the surface of the platen, feeding rolls also mounted on said arms and operated by said driving rolls, and means cooperating with said feeding rolls to catch the side edges of the card to advance it from the printing line; said arms adjustable toward and from each other.

' HARRY S. MCCORMACK. Vitnesses: i

JOHN O. SEIFERT, K. FRANKFoeT.

arms and operated by said driving rolls, and means cooperating with said feeding rolls to 

